An Exposition of the Orthodox Faith 70
An Exposition of the Orthodox Faith by St. John of Damascus (translated by E.W. Watson and L. Pullan, 1899)
1 BOOK III — CHAPTER 26: Concerning the Passion of our Lord's body, and the Impassibility of His divinity.
2 The Word of God then itself endured all in the flesh, while His divine nature which alone was passionless remained void of passion. For since the one Christ, Who is a compound of divinity and humanity, and exists in divinity and humanity, truly suffered, that part which is capable of passion suffered as it was natural it should, but that part which was void of passion did not share in the suffering.
3 Observe, further, that we say that God suffered in the flesh, but never that His divinity suffered in the flesh, or that God suffered through the flesh. For if, when the sun is shining upon a tree, the axe should cleave the tree, and, nevertheless, the sun remains uncleft and void of passion, much more will the passionless divinity of the Word, united in subsistence to the flesh, remain void of passion when the body undergoes passion.